Isn't Jim Gordon a tired old man? Suddenly he's a jacked, mid-30s badass.
Yeah a major conflict in the new issues is Jim struggling with becoming Batman
Especially physically
There's a lot of stuff about how much he needs to be supplemented in order to keep up with the stress
I mean look at all this shit he's jacked up on lol

Also, didn't the Joker murder Gordon with an axe in Endgame? How'd he recover from that?
He either just knocked him out or it wasn't fatal
I don't remember
Either way, he survived
But I really wanted them to give Alfred a hook after the Joker sliced off his hand lol